myriok



(No Model.) 2 Sheets-Sheet, 1.

G. S. MYRIGK.

WOOD PLANING MACHINE.

WITNESSES:

' INVENTOR N. PEIERS. mammm m fiar, Wznhinglaa, D. l:v

2 Sheets-Sheet 2.

(No Model.)

G. S. MYRIOK.

WOOD PLANING MACHINE.

No. 373,411. Patented Nov. 15, 1887.

INVENTOE WITNESSES:

NITED STATES PATENT FFICE.

GILBERT S. MYRIOK, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO GOODELL &WATERS, OF SAME PLACE.

WOOD-PLANING MACHINE.

SPECIFICATION forming part of Letters Patent No. 373,411, dated November15, 1887.

(N0 model.)

To all whom it may concern:

Be it known that I, GILBERT S. MYRIcK, a citizen of the United States,residing at Philadelphia, in the county of Philadelphia and State ofPennsylvania, have invented certain new and useful Improvements inVVood-Planing Machines; and I do hereby declare the following to be afull, clear, and exact description ofthe invention, reference being hadto the accompanying drawings, which form part of this specification, inwhich Figure 1 is a side elevation, partly in section, of rear end ofplaning-machine with my attachment. Fig. 2 is a rear elevation, partlyin section, of my attachment ona planing-ma chine. Fig. 3 is a plan viewof my attachmentand part of rear end of planing-machine. Fig. 4. is adetail, partly in section and partly in plan.

Myinvention has relation to planingmachines; and it has for its objectto provide means in the form of an attachment whereby two side heads andtheir pulleys may be readily added to a machine having a top and abottom cutter, either or both, said added side heads being laterallyadjustable on the frame of the machine, substantially as hereinafterdescribed.

My invention consists in the peculiar construction of the cutter-headattachment and its combination with the planing-machine, substantiallyas hereinafter described and claimed.

Referring to the accompanying drawings, A

indicates the rear end of a planing-machine, having a lowering bed, A,and the usual means for adjusting the altitude of said bed. Such machineis supposed to be provided with only a top and a bottom cutter-head,either or both, and it is desired to provide the same with two sidecutter-heads.

B B are knee-plates in the form of L-shaped brackets, secured to the bedA by bolts b b.

To the knee-plates B B is fastened a transverse bar, 0, bolts 0 aconnecting said parts rigidly together. The back or exposed side of thebar 0 has a dovetail groove, 0', which receives dovetail slides d onboxes D D.

E represents another bar rigidly secured to the bed A by inclined bracesF F. Said bar E has longitudinal slots 6 (2, through which passtransverse set-screws E E, which enter boxes G G.

H H are brackets, the upper ends of which form the boxes D D, and thelower parts the boxes G G.

I I are vertical spindles, having side cutterheads, K K, and pulleys LL. These spindles have bearings at their upper ends in the boxes D D,and also bearings at their lower ends in the boxes G G. \Vithin theboxes G G are caps gg. held to the spindles I I by draw-bolts g g. Theboxes D D have similar caps held to the spindles by draw-bolts d cl.

M M are adj usting-screws having handwheels at m. Said screws havehearings in fixed collars or boxes m m, fastened to the bar 0, and theyare swivelcd at their inner ends in a central guide, N, which is securedby bolts n n to said bar 0. The screws M M fit and turn in threadedopenings in the boxes D D, so that when said screws are rotated theycause said boxes to be moved transversely, or to slide laterally on theframe of the machine, or to be adjusted toward or from the central ormiddle line'of the latter.

Before turning the screws M M the setscrews E E should be loosened.Then, by turning screws M, the boxes D D and G G, or the brackets H H,of which said boxes form parts, with the spindles I I, will be movedtogether. \Vhen the desired adjustment is secured, the jam-nuts c e onthe screws E E are turned on and made fast.

It will be noted that my invention provides an attachment which can bereadily applied to an ordinary planing-machine unprovided With sidecutter-heads; also, that said attachment comprises means whereby theadded cutterheads may be readily adjusted to accommodate differentwidths of lumber requiring to be planed. It is an advantage to have thepulleys below the cutter-heads rather than above, for the convenience ofthe workman and to diminish vibration of the heads, and by connectingthe attachment with a lowering ,bed vertical as well as lateraladjustment of the heads is secured; but the attachment may of course bemade to a stationary bed.

\Vhat I claim as my invention is- 1. In a planing-machine having alowering bed, A, the combination, with said bed, of the IOU dovetailgrooved plate 0, secured to the rear end thereof, the dovetailedside-cutter bearings D D, located on either side of the center ofsaidbed and formed with screw-bearings for 5 the passage of adjlisting-screws, the slotted bar E, rigidly secured to the bed A belowthe plate 0, the cutter-heads K, with shafts I, journaled in thebearings D D, the boxes G G, forming end bearings for shafts I, andsecured [O to the bar E by screws E, and the horizontal adjusting-screws M, having spindlesjournaled in the boxes m, formed on theplate 1, sub- Stantially as described.

2. In a planing-machine, the combination,

Witnesses:

WILL H. POWELL, R. DALE SPARHAWK.

